系动词亦称连系动词（Link Verb），作为系动词，它本身有词义，但不能单独用作谓语，后边必须跟表语（亦称补语），构成系表结构说明主语的状况、性质、特征等情况。系动词后不可接副词，接的是形容词。其中的后边必须跟表语（亦称补语）说法正确么？谢谢！

解答如下：

系动词后可以接“副词”作表语,因此你的描述和理解有些不正确。（少数副词也是可以作表语的）

系动词后必须接表语，可以充当表语有以下形式

(1)名词

She is a doctor.

(2)形容词

She is beautiful.

(3)副词

She is here.

They are there.

Tom is upstairs.

They were away.

The light was off.

The film is on

(4)代词

It is me.

(5)数词

She is fifteen.

(6)不定式

Her job is to wash dishes.

(7)动名词

Her job is taking care of the baby.

(8)现在分词

The news is inspiring .

(9)过去分词

She was excited.

(10)从句

The question is where we can find him.

是的系动词后面必须跟表语或补语，否则意思不完整。

系动词下还可接其它副词作表语。例如：

The class is over.

Father is away.

Is anybody in?